On the first roll in the casino game of CRAPS, which is played by tossing 2 dice, rolling a sum of 2, 3, or 12 is called "craps" and is an automatic loser. Rolling a sum of 7 or 11 is called a "natural" and a automatic winner. All other sums are referred to as the "point".

The probability of rolling craps is 1:9 or 0.1111. The probability of rolling a natural is 2:9 or 0.2222.

This is an experiment to determine if these mathematical probabilties hold true by rolling 2 dice up to 1,000,000 times.

Choose how mamy times you want to toss the dice. Each time you press the "TOSS" button, 2 dice will be rolled that many times. Experiment results approach mathematical probabilty when the number of trials is very high.

Enter Number of Tosses: (1 - 1000000):